<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- 引入外部的css文件 -->
    <link rel="stylesheet" href="./index.css">
</head>

<body>
    <h1 style="color: red;background-color: bisque;">内联样式</h1>
    <h1>内联样式</h1>
</body>

</html>